EP2748485B1 - Torque transmission device - Google Patents

Description

The invention relates to a torque transmission device, in particular for a drive train of an internal combustion engine-driven motor vehicle, comprising an input part and an output part with a common axis of rotation about which the input part and the output part rotatable together and rotatable relative to each other are limited and an effective between the input part and the output member spring Damper device with at least one energy storage and a friction device.

From the DE 10 2009 035 916 A1 is a torsional vibration damper, in particular two-mass flywheel, known comprising a primary mass and a secondary mass, which are coupled via a friction device relative to a relative rotation between the two, wherein the friction device comprises a support plate, a support plate and a plate spring, wherein the plate spring has a plurality of tongues on its inner circumference to improve the centering of the friction device during assembly of the friction device.

According to the DE 10 2009 035 916 A1 For example, the dual mass flywheel includes a primary mass and a secondary mass which are rotatable relative to each other against the force of a bow spring assembly. The dual mass flywheel has an axis of rotation. The secondary mass comprises arcuate cutouts in which the bow spring arrangement is mounted. The primary mass has on both sides arcuate channel-like widening, in which the bow spring assembly is located.

According to the DE 10 2009 035 916 A1 A friction device dampens the relative rotation between primary mass and secondary mass due to dry friction. The damping device comprises a support plate, which is firmly connected to the primary mass, for example, riveted, and a support disk, which is defined with respect to a rotation about the axis of rotation relative to the support plate but in the axial direction relative to this displaceable. Between the support plate and the support disk, a friction control disc is arranged, which is axially displaceable with a toothing and rotatably connected to the secondary mass. The friction control disk is in surface contact with the support plate and the support disk, so that a relative rotation of the friction control disk relative to the support plate and the support disk against the dry friction of the surfaces in contact is possible. The support disk is pressed by a plate spring on the Reibsteuerscheibe or the support plate, so that the Reibsteuerscheibe between the support plate and the support plate is clamped. Fingers of the support disc engage through corresponding openings of the support plate. Likewise, fingers of the diaphragm spring engage through openings of the support plate.

Other torque transmitting devices are characterized by the US 5,935,008A , the US 2010 / 210366A1 and the US 2006 / 185959A1 known.

The invention has for its object to provide a torque transmission device mentioned above with a space-adapted and / or space-optimized structure.

The object is achieved with a torque transmission device, in particular for a drive train of an internal combustion engine-driven motor vehicle, comprising an input part and an output part with a common axis of rotation about which the input part and the output part rotatable together and rotatable relative to each other are limited and one between the input part and the Output part effective spring-damper device with at least one energy storage and a friction device, wherein the friction device is arranged radially outside of the at least one energy storage.

Designations "input part" and "output part" refer to a torque flow direction emanating from a drive, such as an internal combustion engine. The term "radial" refers to the axis of rotation. A radial direction is then a direction perpendicular to the axis of rotation.

The torque transmitting device may be a torsional vibration damper. The torque transmitting device may be a dual mass flywheel. The input part of the torque transmission device can be drive-connected to an output part of the internal combustion engine, in particular to a crankshaft. The output part of the torque transmission device can be drive-connected to an input part of a friction clutch, in particular to a clutch housing.

The spring-damper device may comprise a spring device. The spring-damper device may comprise a damper device. The spring device and the damper device the spring-damper device can be connected in parallel. The spring device can have the at least one energy store. The spring device may have at least one spring. The at least one spring of the spring device may be a helical spring. The at least one spring of the spring device may be a compression spring. The at least one spring of the spring device may be a bow spring. The spring device can have several, in particular two, springs. The springs of the spring device can be arranged like an arc around the axis of rotation. The springs of the spring device can be arranged at a first radius spaced around the axis of rotation. The damper device may comprise the friction device. The friction device may be arranged in a ring around the axis of rotation. The friction device can be arranged at a second radius spaced around the axis of rotation. The second radius may be larger than the first radius.

With the torque transmission device according to the invention a space requirement is reduced in the region of the axis of rotation. It is a reduced normal force or contact force required on the friction device. A surface pressure on the friction device is reduced. The friction device is subject to reduced stress.

With the output part a pendulum mass carrier part of a centrifugal pendulum device is rotatably connected and the friction device is effective between the input part and the pendulum mass carrier part. The output part may have a flange part. The output part may have a flywheel mass part. The flywheel mass part can be firmly connected to the flange part of the output part. The flywheel mass part can be riveted to the flange part of the output part. The pendulum mass carrier part can be firmly connected to the flywheel mass part. The pendulum mass carrier part can be riveted to the flywheel mass part. The pendulum mass carrier part can be rotatable together with the output part about the axis of rotation. The pendulum mass carrier part may have a flange-like shape. The pendulum mass carrier part may have a double flange-like shape with two flange sections spaced apart from one another in the direction of the axis of rotation. At the pendulum mass carrier part can be arranged at least one movable under centrifugal force relative to the pendulum mass carrier part pendulum mass. The at least one pendulum mass may be displaceable along a predetermined path. The at least one pendulum mass may be displaceable between a first end position and a second end position. The at least one pendulum mass can be arranged displaceable by means of spherical rollers on the pendulum mass carrier part. The at least one pendulum mass and / or the pendulum mass support member may comprise spherical roller tracks, in which the spherical rollers are arranged. The at least one pendulum mass may be arranged between the two flange portions of the pendulum mass carrier part.

The friction device can have a friction control disk which is frictionally connected to the input part and can be positively connected to the pendulum mass carrier part. The friction control disk may have at least one frictionally engaging with the input part friction surface. The friction control disc may be formed in one piece. The friction control disk can be designed in several parts. Several Reibsteuerscheibenteile can be interconnected by means of a support member. The friction control disk or friction control disk parts may comprise a friction material. The friction material may be a plastic. The friction material can be flexible, rubber-resin-bonded, elastomer resin-bonded, injection-molded and / or metal-free. The carrier element may be a sheet metal part. The carrier element may have openings in which the Reibsteuerscheibenteile are added. Thus, the Reibsteuerscheibe can be positively entrained by the pendulum mass carrier part and it can be a rubbing relative movement between the Reibsteuerscheibe and the input part. It saves friction material. With the support plate mounting of the friction elements is facilitated.

The input part may have a flange part and a cover part and the friction control disk may be frictionally connected to the cover part. The flange part can serve for the drive connection of the torque transmission device with the internal combustion engine. The lid part may be firmly connected to the flange. The cover part may be materially connected to the flange. The cover part can be welded to the flange part. The cover part can be arranged viewed in the direction of the axis of rotation between the flange and the pendulum mass support member. The cover part may have a frictionally engaging with the Reibsteuerscheibe friction surface. The friction surface of the lid part may face the pendulum mass carrier part. The friction surface of the lid part may be remote from the pendulum mass carrier part. A frictional engagement between the friction control disk and the cover part can take place in a plane perpendicular to the axis of rotation. The friction control disk can be frictionally connected to the flange part. A frictional engagement between the friction control disk and the flange part can take place in a plane parallel to the axis of rotation.

The friction device may comprise a friction control disc, which is positively connected to the input part and frictionally connected to the pendulum mass support member. The pendulum mass support member may be arranged viewed in the direction of the axis of rotation between the input part and the flywheel mass portion of the output part. The pendulum mass carrier part may have a frictionally engaging with the Reibsteuerscheibe friction surface. The friction surface of the pendulum mass carrier part may face the input part.

Thus, the Reibsteuerscheibe can be positively entrained by the input part and it can be a rubbing relative movement between the Reibsteuerscheibe and the pendulum mass carrier part. The input part can have a flange part and a cover part and the friction control disk can be positively connected to the cover part.

The cover part can have a flange section arranged radially outside the at least one energy store, and the friction device can be arranged on the flange section. The cover part may have a connecting portion for connection to the flange part of the input part. The connecting portion of the lid part may be disposed radially inside the flange portion. The cover part can limit a receiving space for the at least one energy store together with the flange part of the input part. The receiving space may have a toroidal shape. The receiving space may be arranged radially inside the flange portion. The receiving space may be arranged radially inside the connecting portion of the lid part. The friction device can correspond to the flange portion frictionally.

For positive connection of the Reibsteuerscheibe first stop portions which are effective in a first direction of rotation, and second stop portions which are effective in a second direction of rotation may be provided, and the Reibsteuerscheibe may have with the stopper portions corresponding driving portions. In the first direction of rotation, the driving portions may rest against the first stop portions. In the second direction of rotation, the driving portions may rest against the second stop portions. The driving portions can rest in the circumferential direction of the friction control disc to the stop portions. This different stop sections are effective in each direction. The stopper portions may be formed with recesses. The recesses may have edge portions. The edge portions may form the stopper portions. The driving sections can be formed with extensions. The extensions can be received in the recesses. The extensions can extend in the direction of the axis of rotation into the recesses. The friction control disk may have a plurality of circumferentially distributed driving portions. The Reibsteuerscheibe may have a plurality of circumferentially distributed projections arranged. The extensions can be arranged distributed uniformly in the circumferential direction.

In another embodiment, the Reibsteuerscheibe for positive connection having the stopper portions and the pendulum mass support member may be the driving portions exhibit. The driving sections may be riveting heads of a riveting of the pendulum mass carrier part.

The stop portions may be spaced from the driving portions such that a direction of rotation dependent hysteresis is generated. The stopper portions may be spaced from the follower portions in the circumferential direction of the friction control disk. The friction control disk may have slot-like recesses. The Reibsteuerscheibe may have a plurality of circumferentially distributed recesses arranged. The recesses may each extend in the circumferential direction of the friction control disk. The recesses may have a shape corresponding to the circumference of the friction control disk. The recesses may each have a first stopper portion and a second stopper portion. The recesses may each have a first end portion and a second end portion. The first end portions of the recesses may form the first stopper portions. The second end portions of the recesses may form the second stopper portions. The recesses may be greater in the driving direction, as the driving sections. The driving sections can be guided in the recesses. The length of the recesses in the driving direction can determine a predetermined clearance angle. A "clearance angle" is a maximum angle range over which the input part and the output part can be rotated relative to one another in a change of direction without entrainment between the stopper sections and the driving sections and thus friction on the friction control disk.

The friction device may have a spring device for acting on the friction control disk, and the spring device may be in direct frictional contact with the friction control disk. With the spring device, a force or force component can be applied in the direction of the axis of rotation. With the spring device, a normal force for generating a frictional force can be applied to the friction device. The spring device may comprise a plate spring. The spring device can form a support plate. The spring device can fulfill a dual function. A separate support plate can be omitted. In this context, a "support plate" is, in particular, an element which can be displaced in the direction of the axis of rotation and is rotatable relative to the friction control disk and which serves to transmit a contact force to the friction control disk. The support plate may be rotatably connected to the input part or with the pendulum mass carrier part.

The friction control disc can cover the pendulum mass carrier part in such a way that the spherical rollers are fixed. This eliminates a separate position assurance for the spherical rollers.

In summary and in other words, the invention thus provides inter alia a friction device for a dual-mass flywheel with a centrifugal pendulum, in which the friction device is mounted radially over a curved spring channel. The friction device can be mounted between a cover and primary pulley. An actuation of the friction device can take place through a slot on a centrifugal pendulum flange. The width of this slot can determine a Reibsteuerscheibenfreiwinkel. Due to the radial position (far out), an axial plate spring force can be reduced and thus the surface pressure on the Reibsteuerscheibe and a cheaper material can be used for Reibsteuerscheibe.

The friction device can be mounted on the centrifugal pendulum flange. In that case, the friction control disk can be actuated by a recess in the lid. The plate spring for entry of the axial force in the Reibsteuerscheibe can also be used as a support plate. In order to prevent cylindrical rollers from falling out of the centrifugal pendulum, the friction control disc can be placed over roller conveyors. The friction control disc can be divided into several parts to save plastic. In order to simplify the positioning of the various individual elements during assembly, they can be mounted in a carrier plate. The friction device can be riveted to the cover with several warts on the circumference. Thus, the insertion of additional rivets during assembly can be avoided. The friction control disk can be mounted on a cover side. The friction control disc can be divided into several individual elements and mounted in a carrier plate. This sheet can serve as actuation of the friction device by additional tabs on the circumference. The plate spring can also serve as a cover plate to produce a second friction surface. The diaphragm spring can serve as a cover plate. The contact on the outer diameter of the Reibsteuerscheibe and on the lid can represent an additional friction surface. As a result, even under centrifugal force can be avoided that the Reibsteuerscheibe widens too much. Several lugs on the friction control disc can go through a recess in the lid in a slot in Fliehkraftpendelflansch and thus allow the operation of the friction device. The friction control disc can be actuated by the closing head of a riveting centrifugal pendulum / secondary flywheel.

Hereinafter, embodiments of the invention will be described with reference to figures. From this description, further features and advantages. Concrete features of these embodiments may represent general features of the invention. Features associated with other features of these embodiments may also constitute individual features of the invention.

Fig. 1

zwei Schnittdarstellungen eines Zweimassenschwungrads mit einem Eingangsteil, einem Ausgangsteil, einer Feder-Dämpfer-Einrichtung mit Bogenfedern und einer radial außerhalb der Bogenfedern angeordneten Reibeinrichtung mit einer Reibsteuerscheibe und einer Fliehkraftpendeleinrichtung mit einem Pendelmassenträgerteil, bei dem die Reibsteuerscheibe mit dem Eingangsteil reibschlüssig verbunden und mit dem Pendelmassenträgerteil formschlüssig verbindbar ist,

Fig. 2

ein Zweimassenschwungrad mit einem Eingangsteil, einem Ausgangsteil, einer Feder-Dämpfer-Einrichtung mit Bogenfedern und einer radial außerhalb der Bogenfedern angeordneten Reibeinrichtung mit einer Reibsteuerscheibe und einer Fliehkraftpendeleinrichtung mit einem Pendelmassenträgerteil, bei dem die Reibsteuerscheibe mit dem Eingangsteil formschlüssig verbindbar und mit dem Pendelmassenträgerteil reibschlüssig verbunden ist, in Schnittdarstellung,

Fig. 3

ein Zweimassenschwungrad mit einem Eingangsteil, einem Ausgangsteil, einer Feder-Dämpfer-Einrichtung mit Bogenfedern und einer radial außerhalb der Bogenfedern angeordneten Reibeinrichtung mit einer Reibsteuerscheibe und einer Fliehkraftpendeleinrichtung mit einem Pendelmassenträgerteil, bei dem die Reibsteuerscheibe als Trägerblech mit Reibelementen ausgebildet ist, in Schnittdarstellung,

Fig. 4

ein Zweimassenschwungrad mit einem Eingangsteil, einem Ausgangsteil, einer Feder-Dämpfer-Einrichtung mit Bogenfedern und einer radial außerhalb der Bogenfedern angeordneten Reibeinrichtung mit einer Reibsteuerscheibe und einer Fliehkraftpendeleinrichtung mit einem Pendelmassenträgerteil, bei dem die Reibsteuerscheibe mit einer mit dem Eingangsteil vernieteten Tellerfeder gehalten ist, in Schnittdarstellung,

Fig. 5

ein Zweimassenschwungrad mit einem Eingangsteil, einem Ausgangsteil, einer FederDämpfer-Einrichtung mit Bogenfedern und einer radial außerhalb der Bogenfedern angeordneten Reibeinrichtung mit einer Reibsteuerscheibe und einer Fliehkraftpendeleinrichtung mit einem Pendelmassenträgerteil, bei dem die Reibsteuerscheibe als Trägerblech mit zweiseitig wirksamen Reibelementen ausgebildet ist, in Schnittdarstellung,

Fig. 6

ein Zweimassenschwungrad mit einem Eingangsteil, einem Ausgangsteil, einer FederDämpfer-Einrichtung mit Bogenfedern und einer radial außerhalb der Bogenfedern angeordneten Reibeinrichtung mit einer Reibsteuerscheibe und einer Fliehkraftpendeleinrichtung mit einem Pendelmassenträgerteil, bei dem eine Tellerfeder als Stützblech dient, in Schnittdarstellung und

Fig. 7

ein Zweimassenschwungrad mit einem Eingangsteil, einem Ausgangsteil, einer FederDämpfer-Einrichtung mit Bogenfedern und einer radial außerhalb der Bogenfedern angeordneten Reibeinrichtung mit einer Reibsteuerscheibe und einer Fliehkraftpendeleinrichtung mit einem Pendelmassenträgerteil, bei dem eine formschlüssige Verbindung zwischen Reibsteuerscheibe und Pendelmassenträgerteil mithilfe von Nieten erfolgt, in Schnittdarstellung.

They show schematically and by way of example:

Fig. 1

two sectional views of a dual mass flywheel with an input part, an output part, a spring-damper device with bow springs and a radially outside the bow springs arranged friction device with a Reibsteuerscheibe and a centrifugal pendulum device with a pendulum mass support member, in which the Reibsteuerscheibe frictionally connected to the input part and the pendulum mass support member is positively connected,

Fig. 2

a dual mass flywheel with an input part, an output part, a spring-damper device with bow springs and a radially outside the bow springs arranged friction device with a Reibsteuerscheibe and a centrifugal pendulum device with a pendulum mass support member, wherein the Reibsteuerscheibe positively connected to the input part and frictionally connected to the pendulum mass support member is, in section,

Fig. 3

a dual-mass flywheel with an input part, an output part, a spring-damper device with bow springs and a friction device arranged radially outside the bow springs with a Reibsteuerscheibe and a centrifugal pendulum device with a pendulum mass support member, in which the Reibsteuerscheibe is designed as a carrier plate with friction elements, in sectional view,

Fig. 4

a dual mass flywheel with an input part, an output part, a spring-damper device with bow springs and a radially outwardly of the bow springs arranged friction device with a Reibsteuerscheibe and a centrifugal pendulum device with a pendulum mass support member, wherein the Reibsteuerscheibe is held with a riveted to the input part plate spring, in sectional view

Fig. 5

a dual-mass flywheel with an input part, an output part, a spring damper device with bow springs and a friction arranged radially outside of the bow springs friction device and a centrifugal pendulum device with a pendulum mass support member in which the friction control disc is designed as a carrier sheet with two-sided effective friction elements, in sectional view,

Fig. 6

a dual mass flywheel with an input part, an output part, a spring damper device with bow springs and a radially outside the bow springs arranged friction device with a Reibsteuerscheibe and a centrifugal pendulum device with a pendulum mass support member in which a plate spring serves as a support plate, in sectional view and

Fig. 7

a dual mass flywheel with an input part, an output part, a spring damper device with bow springs and a radially outside of the bow springs arranged friction device with a Reibsteuerscheibe and a centrifugal pendulum device with a pendulum mass support member, in which a positive connection between Reibsteuerscheibe and Pendelmassenträgerteil using rivets, in a sectional view.

Fig. 1 shows two sectional views of a dual-mass flywheel 100 with an input part 102, an output member 104, a spring-damper device with bow springs, such as 106, and a radially outwardly of the bow springs 106 arranged friction device with a Reibsteuerscheibe 108 and a centrifugal pendulum device with a pendulum mass support member 110, wherein the friction control disk 108 is frictionally connected to the input part 102 and can be positively connected to the pendulum mass support part 110. In Fig. 1 On the left is a sectional view along the axis of rotation 112 of the dual mass flywheel 100 shown. On the right is a sectional view along the line ZZ shown.

The dual mass flywheel 100 is an example of a torque transmitting device. The dual mass flywheel 100 is a torsional vibration damper. The dual-mass flywheel 100 serves to dampen torsional vibrations in a drive train (not shown here) of an internal combustion engine-driven motor vehicle. Such torsional vibrations are caused in particular by periodically proceeding combustion processes in the internal combustion engine and associated rotational irregularity.

The input part 102 of the dual-mass flywheel 100 can be connected with an output shaft of the internal combustion engine, in particular with a crankshaft, to transmit torque. The output part 104 of the dual-mass flywheel 100 can be connected to an input part of a friction clutch to transmit torque. The input part 102 and the output part 104 are rotatable together about the common rotation axis 112. The input part 102 and the output part 104 are limited rotatable relative to each other about the rotation axis 112.

The input part 102 has a flange part 114 and a cover part 116. The flange 114 and the lid portion 116 are fixedly connected to each other, in this case welded. The flange part 114 and the cover part 116 enclose a torus-like receiving space 118. The output part 104 has a flange part 120. With the flange 120, a flywheel mass part 122 is firmly connected, riveted in the present case. The flywheel mass part 122 of the output part 104 is rotatably mounted on the flange part 114 of the input part 102. With the flywheel mass portion 122, the pendulum mass support member 110 of the centrifugal pendulum device is firmly connected, for example, riveted. The pendulum mass support member 110 is double flange formed with two viewed in the direction of the rotation axis 112 spaced adjacent flange portions. Between the flange portions of the pendulum mass support member 110 pendulum masses, such as 124, are arranged.

The pendulum masses 124 are arranged displaceably on the pendulum mass carrier part 110 relative to the pendulum mass carrier part 110. The pendulum masses 124 are pivotable. The pendulum masses 124 are arranged on the pendulum mass carrier part 110 at a distance from the axis of rotation 112. The pendulum masses 124 are displaceable along a predetermined path between two end positions. In the present case, the centrifugal pendulum device has three pendulum masses 124. In another embodiment, however, the centrifugal pendulum device can also have more or fewer pendulum masses, for example two or four pendulum masses. The pendulum mass carrier part 110 is arranged in the direction of the axis of rotation 112 between the cover part 116 of the input part 102 and the flywheel mass part 122 of the output part 104.

The pendulum mass support member 110 has openings, such as 126, which correspond to the openings of the pendulum masses 124. In the openings 126 of the pendulum mass support member 110 and the openings of the pendulum masses pendulum rollers, such as 128, arranged, with which the pendulum masses 124 are displaceably mounted along a predetermined path between the two end positions.

Between the input part 102 and the output part 104, the spring-damper device is effective. The spring-damper device has the bow springs 106. In the present case two bow springs 106 are provided, each extending over an approximately semicircular peripheral portion. The bow springs 106 are supported on the one hand on the input part 102 and on the other hand on the flange part 120 of the output part 104 from.

The flange portion 114 of the input part 102 has radially outward extending in the direction of the axis of rotation 112 portion which engages around the centrifugal pendulum means radially on the outside. The cover part 116 of the input part 102 has a flange portion 130 radially on the outside. The flange portion 130 of the lid part 116 is spaced apart from the flange part 114 of the input part 102 in the direction of the rotation axis 112, so that a receiving space is formed between the flange part 114 and the flange part 130 of the lid part 116. In this receiving space, the friction device of the spring-damper device is arranged.

The friction device has the Reibsteuerscheibe 108, a support plate 132 and a plate spring 134. The support plate 132 is limited in the direction of the axis of rotation 112 displaced. The friction control disc 108 is disposed between the flange portion 130 of the lid member 116 and the support plate 132. The plate spring 134 is disposed between the flange 114 and the support plate 132. The plate spring 134 is supported on the flange 114 on the one hand and on the support plate 132 on the other. Thus, the support plate 132 is acted upon in the direction of the Reibsteuerscheibe 108. With the plate spring 134, a contact force is generated, with which the Reibsteuerscheibe 108 is pressed between the flange portion 130 of the cover member 116 and the support plate 132. The contact force causes the friction control disc 108 a normal force, which causes a proportional frictional force involving a coefficient of friction.

Directed to the pendulum mass support member 110 toward the Reibsteuerscheibe 108 driving sections, such as 136, on. In the present case, the friction control disk 108 has two diametrically opposite driving sections 136. However, in another embodiment, the friction control disc 108 may also have more or fewer driving portions. For example, the Reibsteuerscheibe one, three or four driving sections exhibit. In the present case, the driving sections are formed as extensions with a circular cross-section. The flanged portion of the pendulum mass support member 110 adjacent to the friction control disk 108 has abutment portions such as 138, 140. The abutment portions 138, 140 are formed with end portions of slot-like recesses, such as 142, in the pendulum mass support member 110. The recesses 142 have an arcuate shape corresponding to the circumference of the friction control disk 108. The recesses 142 extend in the longitudinal direction over an angular range of approximately 30 ° -45 °, in particular of approximately 36 °. The recesses 142 have a driving portions 136 approximately corresponding width. In the present case, the pendulum mass carrier part 110 has two diametrically opposite recesses 142. However, in another embodiment, the pendulum mass support member 110 may also have more or fewer recesses. For example, the pendulum mass carrier part have one, three or four recesses.

The driving sections 136 of the friction control disk 108 extend in the direction of the axis of rotation 112 into the recesses 142 of the pendulum mass carrier part 110. The driving portions 136 are guided in the recesses 142. Depending on the direction of rotation, the driving sections 136 can alternately strike against the bearing sections 138, 140. Thus, a rotation angle range is given, in which the input part 102 and the output part 104 can rotate relative to each other, without entrainment of the Reibsteuerscheibe 108 takes place. This angular range is also referred to as clearance angle 144.

The bearing point between the flywheel mass part 122 of the output part 104 and the flange part 114 of the input part 102 is arranged radially inward, facing the axis of rotation 112. The connection between the flange part 120 and the flywheel mass part 122 is arranged in the radial direction outwards. Following radially outward following the receiving space 118 and the bow springs 106 are arranged. Still further radially outward, the flange portion 114 and the lid portion 116 of the input portion 102 are interconnected. Still further radially outward follow the friction device and the centrifugal pendulum device are arranged.

Fig. 2 shows a dual-mass flywheel 200 with an input part 202, an output member 204, a spring-damper device with bow springs 206 and arranged radially outside the bow springs 206 friction device with a Reibsteuerscheibe 208 and a centrifugal pendulum device with a pendulum mass support member 210, wherein the Reibsteuerscheibe 208 with the Entrance part 202 positively connected and with the pendulum mass carrier part 210 frictionally connected, in sectional view. The cover part 212 of the input part 202 has the recesses with abutment portions into which the driving portions of the friction control disc 208 engage. The flange portion 214 of the lid part 212 is bent toward the pendulum mass support part 210. At the side facing the pendulum mass support member 210 edge of the lid portion 212, the recesses are arranged with the stopper portions. The plate spring 216 is connected to the input part 202 facing flange portion of the pendulum mass support member 210, riveted present. The disc spring 216 also fulfills the function of a support plate 218. The friction control disc 208 covers the input part 202 facing flange portion of the pendulum mass support member 210 from such that falling out of the spherical rollers of the centrifugal pendulum device is prevented. The spherical rollers of the centrifugal pendulum device are fixed by means of the Reibsteuerscheibe 208. Incidentally, in particular Fig. 1 and the related description.

Fig. 3 shows a dual-mass flywheel 300 having an input part 302, an output part 304, a spring-damper device with bow springs 306 and a friction arranged radially outside the bow springs 306 friction device with a Reibsteuerscheibe 308 and a centrifugal pendulum device with a pendulum mass support member 310, wherein the Reibsteuerscheibe 308 as a support plate 312 is formed with friction elements 314, in sectional view. The support plate 312 has an annular disk-like shape with recesses, such as 316 on. In the recesses 316, the friction elements 314 are used. The recesses 316 have a slot-like shape. The friction elements 314 each have a friction section 318 and a fastening section 320. Incidentally, in particular Fig. 1 and the related description.

Fig. 4 shows a dual-mass flywheel 400 with an input part 402, an output part 404, a spring-damper device with bow springs 406 and a radially outside of the bow springs 406 arranged friction device with a Reibsteuerscheibe 408 and a centrifugal pendulum device with a pendulum mass support member 410, wherein the Reibsteuerscheibe 408 with a with the input part 402 riveted plate spring 412 is held, in sectional view. The plate spring 412 also fulfills the function of a support plate 414. The plate spring 412 is connected to the flange portion 416 of the cover part 418 of the input part 402, in this case riveted. The riveting is arranged on the radially outer edge portion of the flange portion 416. For riveting, projecting pins 420 are arranged on the edge portion of the flange portion 416 to the pendulum mass support member 410. The pins 420 are part of the flange portion 416. For mounting the pins 420 in Openings of the plate spring 412 inserted and the free end of the pin 420 is plastically deformed, so that the plate spring is connected to the flange portion 416. This can be dispensed with separate rivets. The flange portion of the pendulum mass carrier part 410 facing the input part 402 has the recesses with the stopper portions. Incidentally, in particular Fig. 1 and the related description.

Fig. 5 shows a dual mass flywheel 500 with an input part 502, an output part 504, a spring-damper device with bow springs 506 and a radially outwardly of the bow springs 506 arranged friction device with a Reibsteuerscheibe 508 and a centrifugal pendulum device with a pendulum mass support member 510, wherein the Reibsteuerscheibe 508 as a support plate 512 is formed with two-sided effective friction elements, in sectional view. The support plate 512 has an annular disk-like shape with recesses, such as 514 on. In the recesses 514, the friction elements are used. The recesses 514 have a slot-like shape. The friction elements each have two friction element parts 516, 518. The friction element parts 516, 518 each have a friction section 520, 522 and a fastening section 524, 526. For assembly, the friction element parts 516, 518 are joined to the recesses 514 with their attachment portions 524, 526 so as to be retained in the recesses 514. Each friction element thus has two friction sides. The friction control disc 508 is suitable for double-sided frictional contact. At the to the input part 502 facing the flange portion of the pendulum mass support member 510, the recesses are arranged with the stopper portions. The carrier plate 512 has projections which are directed toward the flange section of the pendulum mass carrier part 510 and which form the driving sections 528. The plate spring 530 also serves as a support plate 532. Incidentally, in particular on Fig. 1 and the related description.

Fig. 6 shows a dual mass flywheel 600 with an input part 602, an output part 604, a spring-damper device with bow springs 606 and a radially outside the bow springs 606 arranged friction device with a Reibsteuerscheibe 608 and a centrifugal pendulum device with a pendulum mass support member 610, in which a plate spring 612 as a support plate 614 serves, in sectional view. The front part 602 facing flange portion of the pendulum mass support member 610 has the recesses with the stopper portions. The recesses are arranged in the direction of the input part 602 in the manner of a nose-like projecting portions 616 of the pendulum mass carrier part 610. The friction control disk 608 is in frictional contact with the flange portion 618 of the input portion 602 in the radial direction. This can be a widening of the friction control disk 608 under centrifugal force limited or prevented. Incidentally, in particular Fig. 1 and the related description.

Fig. 7 shows a dual-mass flywheel 700 with an input part 702, an output part 704, a spring damper device with bow springs 706 and a radially outside of the bow springs 706 arranged friction device with a Reibsteuerscheibe 708 and a centrifugal pendulum device with a pendulum mass support member 710, in which a positive connection between Reibsteuerscheibe 708 and pendulum mass carrier part 710 by means of rivets, such as 712, takes place, in sectional view. The rivets 712 serve to connect the flange portions of the pendulum mass carrier part 710 and the pendulum mass carrier part 710 with the flywheel mass part 714 of the output part 704. The rivets 712 each have a rivet head 716 directed towards the input part 702, such as a closing head. The rivet heads 716 form the entrainment sections. The friction control disk 708 has the recesses with the stopper portions. Incidentally, in particular Fig. 1 and the related description.

LIST OF REFERENCE NUMBERS

100

Dual Mass Flywheel

102

introductory

104

output portion

106

bow spring

108

friction control plate

110

Pendulum mass carrier part

112

axis of rotation

114

flange

116

cover part

118

accommodation space

120

flange

122

Inertia part

124

pendulum mass

126

breakthrough

128

Spherical roller

130

flange

132

gusset

134

Belleville spring

136

driving portion

138

contact section

140

contact section

142

recess

144

clearance angle

200

Dual Mass Flywheel

202

introductory

204

output portion

206

bow spring

208

friction control plate

210

Pendulum mass carrier part

212

cover part

214

flange

216

Belleville spring

218

gusset

300

Dual Mass Flywheel

302

introductory

304

output portion

306

bow spring

308

friction control plate

310

Pendulum mass carrier part

312

support plate

314

friction

316

recess

318

friction portion

320

attachment section

400

Dual Mass Flywheel

402

introductory

404

output portion

406

bow spring

408

friction control plate

410

Pendulum mass carrier part

412

Belleville spring

414

gusset

416

flange

418

cover part

420

spigot

500

Dual Mass Flywheel

502

introductory

504

output portion

506

bow spring

508

friction control plate

510

Pendulum mass carrier part

512

support plate

514

recess

516

Reibelementteil

518

Reibelementteil

520

friction portion

522

friction portion

524

attachment section

526

attachment section

528

driving portion

530

Belleville spring

532

gusset

600

Dual Mass Flywheel

602

introductory

604

output portion

606

bow spring

608

friction control plate

610

Pendulum mass carrier part

612

Belleville spring

614

gusset

616

section

618

flange

700

Dual Mass Flywheel

702

introductory

704

output portion

706

bow spring

708

friction control plate

710

Pendulum mass carrier part

712

rivet

714

Inertia part

716

rivet head

Claims (9)

1. Torque transmission device (100, 200, 300, 400, 500, 600, 700), in particular for a drive train of a motor vehicle which is driven by an internal combustion engine, having an input part (102, 202, 302, 402, 502, 602, 702) and an output part (104, 204, 304, 404, 504, 604, 704) with a common rotational axis (112), about which the input part (102, 202, 302, 402, 502, 602, 702) and the output part (104, 204, 304, 404, 504, 604, 704) can be rotated together and can be turned relative to one another to a limited extent, and a spring/damper device which is active between the input part (102, 202, 302, 402, 502, 602, 702) and the output part (104, 204, 304, 404, 504, 604, 704) with at least one energy store (106, 206, 306, 406, 506, 606, 706) and a frictional device, the frictional device being arranged radially outside the at least one energy store (106, 206, 306, 406, 506, 606, 706), a pendulum mass carrier part (110, 210, 310, 410, 510, 610, 710) of a centrifugal force pendulum device being connected fixedly to the output part (104, 204, 304, 404, 504, 604, 704) so as to rotate with it, and the frictional device being active between the input part (102, 202, 302, 402, 502, 602, 702) and the pendulum mass carrier part (110, 210, 310, 410, 510, 610, 710).
2. Torque transmission device (100, 400, 500, 600, 700) according to Claim 1, characterized in that the frictional device has a frictional control cam (108, 408, 508, 608, 708) which is connected in a frictionally locking manner to the input part (102, 402, 502, 602, 702) and can be connected in a positively locking manner to the pendulum mass carrier part (110, 410, 510, 610, 710).
3. Torque transmission device (100, 400, 500, 600, 700) according to Claim 2, characterized in that the input part (102, 402, 502, 602, 702) has a flange part (114) and a cover part (116), and the frictional control cam (108, 408, 508, 608, 708) is connected in a frictionally locking manner to the cover part (116).
4. Torque transmission device (200, 300) according to Claim 1, characterized in that the frictional device has a frictional control cam (208, 308) which can be connected in a positively locking manner to the input part (202, 302) and is connected in a frictionally locking manner to the pendulum mass carrier part (210, 310).
5. Torque transmission device (200, 300) according to Claim 4, characterized in that the input part (202, 302) has a flange part and a cover part (212), and the frictional control cam (208, 308) can be connected in a positively locking manner to the cover part (212).
6. Torque transmission device (100, 200, 300, 400, 500, 600, 700) according to one of Claims 3 or 5, characterized in that the cover part (116, 212) has a flange section (130, 214, 416) which is arranged radially outside the at least one energy store (106, 206, 306, 406, 506, 606, 706), and the frictional device is arranged on the flange section (130, 214, 416).
7. Torque transmission device (100, 200, 300, 400, 500, 600) according to one of Claims 2 to 6, characterized in that first stop sections (138) which are active in a first rotational direction and second stop sections (140) which are active in a second rotational direction are provided for connecting the frictional control cam (108, 208, 308, 408, 508, 608) in a positively locking manner, and the frictional control cam (108, 208, 308, 408, 508, 608) has driving sections (136, 528) which correspond with the stop sections (138, 140).
8. Torque transmission device (100, 200, 300, 400, 500, 600) according to Claim 7, characterized in that the stop sections (138, 140) are spaced apart from the driving sections (136, 528) in such a way that a hysteresis which is dependent on the rotational direction is produced.
9. Torque transmission device (200, 300, 400, 500, 600) according to one of Claims 2 to 8, characterized in that the frictional device has a spring device (216, 412, 530, 612) for loading the frictional control cam (208, 308, 408, 508, 608), and the spring device (216, 412, 530, 612) is in direct frictional contact with the frictional control cam (208, 308, 408, 508, 608).

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